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    Viewing angle

    I'm sure I looked at both cameras at the time of purchase, and those 2 options aren't worth anything to me, so wonder why I decided to spend more for nothing.
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    Viewing angle

    I have the DH-HAC-HFW2221R-Z-IRE6 , since that camera wasn't listed in the lens calculator, I searched for one with similar spec, and found DH-HAC-HFW1200R-Z-IRE6 Now on closer look, this camera is not just comparable, but actually identical to mine, but at almost half the price :eek: Or am I...
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    Viewing angle

    Thanks really useful.
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    Viewing angle

    My cameras are varifocal 2.8-12 mm. I have been Googling for the viewing angle, and can find good info on the width at a certain distance, and the identification angles Now what I would really be interested in, but not able to find, is the closest distance to the camera that can be seen for...
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    Voltage drop over Cat5e

    Not sure how you calculate the power loss, neither why you consider 1 pair, when it's clear the balun uses 2 pairs. The power supply provides 20A, divided by 6 cameras, I don't understand why power loss is even considered. And for savings, if I have to pay for the additional power cable, it...
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    Voltage drop over Cat5e

    Maybe someone should create a calculator which takes in accounts those laws of physics.;)
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    Voltage drop over Cat5e

    I'm sorry, call me stupid, but this still goes over my head I can't figure from what you posted how to calculate the voltage loss
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    Voltage drop over Cat5e

    The calculator @TonyR kindly provided, doesn't assume a single conductor...
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    Voltage drop over Cat5e

    Can you check this website please. It has a separate calculator for AC and DC, and depending on the AC or DC, the voltage drop is calculated different. https://photovoltaic-software.com/solar-tools/voltage-drop-calculator-dc-ac
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    Voltage drop over Cat5e

    https://ipcamtalk.com/threads/voltage-drop-over-cat5e.64366/post-679618
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    Voltage drop over Cat5e

    Because you use 2 pairs, which equals to 21AWG
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    Voltage drop over Cat5e

    Probably so for you, but not so for someone who left school 45 years ago, and didn't do university. Can you please do the calculation, using your method, and with the details provided by the cable manufacturer?
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    Voltage drop over Cat5e

    This is the resistance quoted by the cable manufacturer.
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    Voltage drop over Cat5e

    The website has a similar explanation, but doing it manually goes over my head lol. VOLTAGE DROP Voltage drop is given by the following formula : Where : U : Voltage of the DC or AC system (V) This is phase-phase voltage for...
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    Voltage drop over Cat5e

    By the way, this is a voltage calculator I used, and which gives totally different results. 21AWG = 07229 mm² Any idea why they come to a completely different result? https://photovoltaic-software.com/solar-tools/voltage-drop-calculator-dc-ac
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    Voltage drop over Cat5e

    To avoid confusion, as I indeed may be missing something. Can these cameras be POE enabled with the right baluns? cameras
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    Voltage drop over Cat5e

    My cameras are not POE enabled, neither is my XVR, or am I missing something?
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    Voltage drop over Cat5e

    The initial plan was actually to purchase the same Cat5e cable with 18AWG power cable attached, because I wasn't aware that I could use 2 pairs for power with that balun. I then run a calculator, and thought that the voltage drop with 18AWG would be borderline. So I ordered the cable I have...
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    Voltage drop over Cat5e

    Thanks for that calculator, though on another forum I read that if you use 24 AWG and use 1 pair for the supply and 1 pair for the return, that equals to 21 AWG. Can that be correct?
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    Voltage drop over Cat5e

    Ok. thanks for your replies Let me first of all make clear that I'm not a CCTV expert, otherwise I wouldn't be here, and on a limited budget. My location is Thailand, where things may be a little different to the US. My camera's are DH-HAC-HFW2221R-Z-IRE6 , so they are not POE capable I think...
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    Voltage drop over Cat5e

    I will use Cat5e to transfer power from my power supply to my cameras, but I don't know exactly how to calculate the voltage drop. Hopefully someone here will be so kind to calculate it for me :) These are the specs. The Cat5e UTP has 24 AWG solid bare copper wires. I will use a pair for...
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    RG6 VS Cat5e

    Been researching here in Thailand, and all RG6 cable is copper cladded core. Best I can find is 30% copper, and even not sure if that is the shield or the core. The DC wires attached are also copper cladded, so that is definitely a no-go, as it will lose almost 4V over a distance of 35 meter...
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    RG6 VS Cat5e

    I think over 35 meter the power loss over Cat5e is about 3V
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    RG6 VS Cat5e

    Seems best quality RG6 + DC I can find here is 30% copper. Would that suffice for a distance of 35 meter maximum?
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    RG6 VS Cat5e

    Thanks for the correction, hadn't finished my morning coffee yet lol
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    RG6 VS Cat5e

    Thanks can you explain why coaxial is easier when upgrading. I read somewhere that the core has to be 100% solid copper, otherwise it will not work. Is that correct? Hard to get here precise spec of the cable that is sold
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    RG6 VS Cat5e

    I'm installing dh-hac-hfw2221rp-z-ire6 cameras and XVR recorder. I have Cat5e cable in place, and have passive Balun already, but consider to pull RG6 coaxial cable instead. Which is recommended, and which will give me the best signal? I assume coaxial is more difficult to handle over long...
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    Safe way for recordings

    I went through some previous threads, as I considered cloud storage, but it seems that this is an option in general advised against. So I have the XVR with internal SSD. I have the cameras and recorder on a UPS, so when they cut the electric before entering it still records. Once they are...
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    Is this correct?

    Yes it is solid copper, as you can see from the picture. The power cable are 0.3mm strands, for a total of 1 sq mm
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    Is this correct?

    Thanks for the suggestion, indeed a good idea. Will the motorized lens of my camera's work over the coax/power cable?
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